How do I move music from itunes store for an old ipod to a new itouch device

Question

I just bought a new itouch, and wanted to transfer my music from itunes to new device.  do I just plug in and go or will it be a security issue?

Answer 1

That's basically what you do...
Connect the iPod and select it in iTunes.  If the iTunes sidebar is not showing, from the iTunes menu bar, under View, select Show Sidebar.  The iPod should appear in the sidebar, under DEVICES.  Click on it to select it.
With the iPod selected in iTunes, there is a row of buttons toward the top, starting with Summary.  Click on Music next to Summary.  This the iPod's Music screen, where you tell iTunes how to sync songs to the iPod.
Check the box for Sync Music.  If the iTunes music library is small and fits completely on the iPod, you can choose to sync Entire music library.  Then click Apply.  With this setting, everything in the iTunes music library syncs to the iPod.  Whenever you make a change to the iTunes library, such as adding new songs, iTunes automatically updates the iPod with the same changes, the next time it is connected (or when you click the Sync button).  If this works for you, you don't have to read the rest.
Otherwise, you can choose to sync Selected playlists, artists, albums, and genres.  A convenient way to use this setting is to create a new playlist in your iTunes library.  You can call it "iPod Songs," or whartever you want.  From the iTunes music library, add the songs you want on the iPod, such as those iTunes Store purchases, to that playlist.  Back on the iPod's Music screen, find "iPod Songs" under Playlists, and select (checkmark) it.  When you click Apply, the songs from your selection sync to the iPod.  Going forward, when you want to update the songs on the iPod, just update that playlist in your iTunes library (add/remove songs).  The iPod does not need to be connected.  The next time you connect the iPod (or when you click the Sync button), iTunes automatically syncs the same changes to the iPod.